Internal-combustion engines – Four-cycle – Variable clearance
Patent
1978-08-07
1979-08-21
Myhre, Charles J.
Internal-combustion engines
Four-cycle
Variable clearance
123 78B, 123 48C, 123193CP, F02B 7504
Patent
active
041649168
ABSTRACT:
Concentric outer and inner pistons are provided in each cylinder of a four cycle, reciprocating, internal combustion engine. A magnet restrains each outer piston against displacement by pressure of the fuel mixture in the cylinder, so that the outer piston does not move while the engine is under low load. However, while the engine is under substantial load the magnetic restraint is overcome and the outer piston is displaced by pressure of the fuel mixture in the cylinder.
REFERENCES:
patent: 1532788 (1925-04-01), Vandervell
patent: 2060263 (1936-11-01), Sweeney
Moy M.
Myhre Charles J.
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